通过适应热量增加了与运动相关的正静态耐受性的改善:随机对照试验
Iain T Parsons, Daniel Snape1, Michael J Stacey2
1Carnegie School of Sport, Leeds Beckett University, Leeds, UNITED KINGDOM.
Medicine and science in sports and exercise
|December 11, 2023
概括
热适应改善了静止性耐受性,并减少了热应变,这表明它可以防止热昏迷. 这可能是由于血体积增加,这是一个关键的生理适应.
科学领域:
- 运动生理学 运动生理学
- 环境医学 环境医学
- 心血管生理学心血管生理学
背景情况:
- 已知适应热量可以防止热病.
- 热适应对热昏迷的保护作用,一种与反射机制相关的条件,需要进一步研究.
研究的目的:
- 评估热适应 (HA) 对热昏迷的保护作用.
- 确定任何观察到的保护作用的潜在生理机制.
主要方法:
- 20名耐力训练运动员被随机分配到热适应 (HEAT) 组或对照 (CONTROL) 组,持续8天.
- 参与者接受了头向上倾斜 (HUT) 与下体负压 (LBNP) 和热应激测试 (HST) 进行,以评估介入前后的静态耐受性和生理反应.
主要成果:
- 与控制组相比,HEAT组的正静性耐受性 (OT) 显著增加 (40±7分钟 vs. 33±5分钟).
- 热适应导致直肠和皮肤温度降低,心率降低,并在热应激期间感知到劳累.
- 与控制组相比,HEAT组观察到显著增加的血体积 (PV).
结论:
- 热适应增强了静止性耐受性,这表明它对那些经历过热加剧的反射失眠的人有潜在的益处.
- 热适应引起的血体积膨胀是一个可能的生理机制,有助于改善静止性耐受性.
更多相关视频
06:13Author Spotlight: Exploring the Impact of Reduced Resistance Exercise Volume on Metabolic Health
Published on: December 1, 2023
1.1K
12:59Improving Strength, Power, Muscle Aerobic Capacity, and Glucose Tolerance through Short-term Progressive Strength Training Among Elderly People
Published on: July 5, 2017
12.6K
相关概念视频
Exercise and Cardiac Output
1.1K
Regular physical activity is essential for maintaining cardiovascular health, with aerobic exercises being particularly effective. According to the American Heart Association, 150 minutes of moderate to intense aerobic exercise per week is recommended for a healthy heart. Aerobic activities may include brisk walking, running, bicycling, cross-country skiing, and swimming, ideally performed three to five times per week.
Sustained exercise increases the muscles' oxygen demand, which can be...
Sustained exercise increases the muscles' oxygen demand, which can be...
1.1K
Exercise and Cardiovascular Response
825
Exercise significantly impacts cardiovascular response, which is crucial for understanding patient health and designing effective treatment plans.
Light to moderate physical activity initiates a series of interconnected responses in the body. The heart rate modestly increases in anticipation of the workout, followed by widespread vasodilation as oxygen consumption by skeletal muscles increases. This results in decreased peripheral resistance, increased capillary blood flow, and accelerated...
Light to moderate physical activity initiates a series of interconnected responses in the body. The heart rate modestly increases in anticipation of the workout, followed by widespread vasodilation as oxygen consumption by skeletal muscles increases. This results in decreased peripheral resistance, increased capillary blood flow, and accelerated...
825
